IBM ThinkPad T21 Hardware Maintenance Manual page 75

In step 3a and 3b , pull the tab of the each antenna
cables to unplug the cables.
When installing: Plug the gray antenna cable 3a into
When installing: With the notched end of the card toward
3b
4
jack J1 (MAIN), and the black antenna
cable 3b into jack J2 (AUX).
the socket, insert the card into the
socket, and then press it firmly. Pivot the
card until it snaps into place. Make sure
that the card is firmly fixed in the slot
and does not move easily.
ThinkPad T20, T21, T22 and T23 series
Removing and replacing a FRU
3a
4
5
6
69